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-rw-r--r--fs/jbd/commit.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 69b18045946..72ffa974b0b 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -302,12 +302,6 @@ void journal_commit_transaction(journal_t *journal)
* all outstanding updates to complete.
*/
-#ifdef COMMIT_STATS
- spin_lock(&journal->j_list_lock);
- summarise_journal_usage(journal);
- spin_unlock(&journal->j_list_lock);
-#endif
-
/* Do we need to erase the effects of a prior journal_flush? */
if (journal->j_flags & JFS_FLUSHED) {
jbd_debug(3, "super block updated\n");
@@ -722,8 +716,13 @@ wait_for_iobuf:
required. */
JBUFFER_TRACE(jh, "file as BJ_Forget");
journal_file_buffer(jh, commit_transaction, BJ_Forget);
- /* Wake up any transactions which were waiting for this
- IO to complete */
+ /*
+ * Wake up any transactions which were waiting for this
+ * IO to complete. The barrier must be here so that changes
+ * by journal_file_buffer() take effect before wake_up_bit()
+ * does the waitqueue check.
+ */
+ smp_mb();
wake_up_bit(&bh->b_state, BH_Unshadow);
JBUFFER_TRACE(jh, "brelse shadowed buffer");
__brelse(bh);